A thought just crossed my mind about the CBU models that were sitting at the POE for months.
Are the talks about exposure and damage to acid rain/environment sound? BMW ships these cars with a heavy coating of wax or cosmoline. This is to protect the cars in transit, as they make their way across the oceans despite the fact that they are contained in the holds of the specialized RoRo shipping vessels. Actually, at one point they did experiment with enclosing/sealing the entire car in some sort of a giant zip lock bag but that was deemed uneconomical.
Anyways, back to the subject of cosmoline:
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From wikipedia:
Cosmoline is a yellowish, light-amber, or greenish colored
ointment-like mass, having a slight
fluorescence,
petroleum-like
odor and taste. It is similar to
petroleum jelly in properties, appearance, and thickness. It is the purified residue obtained from the
distillation of petroleum oils.
Chemically, cosmoline is a
homogeneous mixture of oily and waxy long-chain, non-polar
hydrocarbons. It can range in color from white to yellow, and can differ in
viscosity and
shear strength. Cosmoline melts at 113°-125°F and has a
flashpoint of 365°F.
Its most common use is in the storage and preservation of
firearms. Previously, cosmoline was used to preserve other things. Objects the size of entire vehicles could be preserved for future use with cosmoline.
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At the VPC/VDC, cars that are prepped undergo a hot water shower (hohmeire) to wash away the cosmoline from the car body and nooks and crannies. Sometimes not all of the cosmoline is washed away, that's why you sometimes get streaks after a car wash or a burning smell from the engine when new. Other things done at the VPC includes programming (cars are shipped in shipping mode which cuts RPMs and speed), removing shipping blocks from suspension, body/paint touch up etc. All these prep work is done right before release to dealers/customers.
More reading materials on the VPC process here:
http://www.offworld.com/e46/images.html
http://www.e90post.com/vpc/index.asp.htm
So, as mentioned...just food for thought.